菌根菌丝连接及邻近植物对车前草生理和养分吸收的影响。

IF 3.8 2区 生物学 Q2 MYCOLOGY
Henry W G Birt, Lewis P Allen, Sam Madge, Clare H Robinson, Richard D Bardgett, David Johnson
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引用次数: 0

摘要

大多数植物通过菌根菌丝扩展其与周围土壤和植物的相互作用区,在某些情况下,这些菌丝可以形成共同的菌根网络,并与其他邻近植物形成菌丝连续性。这些相互作用可以影响植物健康和生态系统功能,但这些放射状植物在菌根相互作用和随后的植物性能中的作用仍未得到充分研究。在这里,我们研究了菌丝探索和与邻近菌根植物、弱菌根植物的相互作用,以及缺乏邻近植物对车前草性能的影响,车前草是许多欧洲草原常见的一种真菌性多年生草本植物。允许菌丝在网状核心之外生长,增加了地上的碳捕获,并随着根渗出物在地下释放碳,导致杉木中与植物健康相关的元素积累更多。然而,与预期相反,菌根或弱菌根邻居的存在以及邻居的缺失并没有显着改变菌丝网络对杉木的益处。我们的研究结果表明,使真菌网络在直接寄主根际之外的发展显著影响植物叶片元素化学计量,增强植物碳捕获,并增加它们通过根作为渗出物释放的碳量。我们的实验设计还提供了一套简单的控制,以防止将积极的菌根效应归因于邻近植物的连接。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The influence of mycorrhizal hyphal connections and neighbouring plants on Plantago lanceolata physiology and nutrient uptake.

The influence of mycorrhizal hyphal connections and neighbouring plants on Plantago lanceolata physiology and nutrient uptake.

The influence of mycorrhizal hyphal connections and neighbouring plants on Plantago lanceolata physiology and nutrient uptake.

The influence of mycorrhizal hyphal connections and neighbouring plants on Plantago lanceolata physiology and nutrient uptake.

Most plants extend their zone of interaction with surrounding soils and plants via mycorrhizal hyphae, which in some cases can form common mycorrhizal networks with hyphal continuity to other neighbouring plants. These interactions can impact plant health and ecosystem function, yet the role of these radial plants in mycorrhizal interactions and subsequent plant performance remains underexplored. Here we investigated the influence of hyphal exploration and interaction with neighbouring mycorrhizal plants, plants that are weakly mycorrhizal, and a lack of neighbouring plants on the performance of Plantago lanceolata, a mycotrophic perennial herb common to many European grasslands, using mesh cores and the manipulation of neighbouring plant communities. Allowing growth of hyphae beyond the mesh core increased carbon capture above-ground and release below-ground as root exudates and resulted in the greater accumulation of elements relevant to plant health in P. lanceolata. However, contrary to expectations, the presence of mycorrhizal, or weakly mycorrhizal neighbours as well as an absence of neighbours did not significantly alter the benefits of hyphal networks to P. lanceolata. Our findings demonstrate that enabling the development of a fungal network beyond the immediate host rhizosphere significantly influences plant leaf elemental stoichiometry, enhances plant carbon capture, and increases the amount of carbon they release via their roots as exudates. Our experimental design also provides a simple set of controls to prevent attributing positive mycorrhizal effects to neighbouring plant connections.

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来源期刊
Mycorrhiza
Mycorrhiza 生物-真菌学
CiteScore
8.20
自引率
2.60%
发文量
40
审稿时长
6-12 weeks
期刊介绍: Mycorrhiza is an international journal devoted to research into mycorrhizas - the widest symbioses in nature, involving plants and a range of soil fungi world-wide. The scope of Mycorrhiza covers all aspects of research into mycorrhizas, including molecular biology of the plants and fungi, fungal systematics, development and structure of mycorrhizas, and effects on plant physiology, productivity, reproduction and disease resistance. The scope also includes interactions between mycorrhizal fungi and other soil organisms and effects of mycorrhizas on plant biodiversity and ecosystem structure. Mycorrhiza contains original papers, short notes and review articles, along with commentaries and news items. It forms a platform for new concepts and discussions, and is a basis for a truly international forum of mycorrhizologists from all over the world.
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